@inproceedings{1c38d99412eb4fbeb23b689a1875db17,
title = "1-MW quasi-Z-source based multilevel PV energy conversion system",
abstract = "This paper proposes a 1 MW grid-tie photovoltaic system by connecting quasi-Z-Source (qZS) networks into Cascaded H-Bridge (CHB) inverter. The proposed Power Conditioning System (PCS) consists of a 3-phase 48-cell CHB inverter where each module is fed by a qZS network. The proposed topology allows boosting the input voltage to a higher level while solving the traditional imbalance problem of DC-link voltage in CHB inverters. A multilevel output voltage waveform is produced using an enhanced phase shifted pulse width modulation technique, which inserts shoot-through states into the conventional zero states to control the qZS-CHB module. The effective control schemes are proposed to achieve grid-tie current injection, low Total Harmonic Distortion (THD) current, unity power factor, and DC-link voltage balance for all qZS-CHB inverter modules. A 1 MW system is built in MATLAB/SIMULINK environment to verify the proposed multilevel PV energy conversion system and its control principles.",
keywords = "Grid Integration, Multilevel Inverter, Power Conditioning System, quasi-Z-Source Network",
author = "Mohamed Trabelsi and Haitham Abu-Rub and Baoming Ge",
note = "Publisher Copyright: {\textcopyright} 2016 IEEE.; IEEE International Conference on Industrial Technology, ICIT 2016 ; Conference date: 14-03-2016 Through 17-03-2016",
year = "2016",
month = may,
day = "19",
doi = "10.1109/ICIT.2016.7474755",
language = "English",
series = "Proceedings of the IEEE International Conference on Industrial Technology",
publisher = "Institute of Electrical and Electronics Engineers Inc.",
pages = "224--229",
booktitle = "Proceedings - 2016 IEEE International Conference on Industrial Technology, ICIT 2016",
address = "United States",
}